The earth and human race can be eliminated by various things, both internally and externally. Internaly our earth could lose heat and use up valuable resources due to pollution and over production. Externally comets and meteors could crash into earth. The sun wont blow up for a few more million years so you dont have to worry about that.
how big is space
That is a question man has been asking since the beginning of time. When your grandparents were in school it was thought that the Universe was very small perhaps only 5000 light years across. 500 years ago it was thought that the Universe was only a little bit bigger than the Earth. In modern times with the power of technology we are finally starting to grasp the immense size of the Universe, and it is much bigger than anyone could have ever imagined.
space
The earth and human race can be eliminated by various things, both internally and externally. Internaly our earth could lose heat and use up valuable resources due to pollution and over production. Externally comets and meteors could crash into earth. The sun wont blow up for a few more million years so you dont have to worry about that.
how big is space
That is a question man has been asking since the beginning of time. When your grandparents were in school it was thought that the Universe was very small perhaps only 5000 light years across. 500 years ago it was thought that the Universe was only a little bit bigger than the Earth. In modern times with the power of technology we are finally starting to grasp the immense size of the Universe, and it is much bigger than anyone could have ever imagined.MARS